Room Dimensions

For the CTS 3210, rectangular rooms are preferred although irregular shaped rooms can also be accommodated. The minimum and recommended room sizes for a Cisco TelePresence 3210 system are provided in Table 2-2 and Table 2-3.

Table 2-2 18 Seat Room Dimensions

Width

Depth

Height

Minimum

31' (9.45 m)

23' (7.01 m)

8' (2.44 m)

Recommended

31' (9.45 m)

26'(7.92 m)

10' (3.05 m)

Maximum

To be determined

26'(7.92 m)

Greater than 10' may require acoustic wall treatment

Table 2-3 14 Seat Room Dimensions

Width

Depth

Height

Minimum

24' (7.32 m)

23' (7.01 m)

8' (2.44 m)

Recommended

24' (7.32 m)

26' (7.92 m)

10' (3.05 m)

Maximum

To be determined

26' (7.92 m)

Greater than 10' (3.05 m) may require acoustic wall treatment

Note Ceilings lower than 7' (2.13m) will not physically support the height of the CTS endpoint lighting façade.

Acoustic Considerations

For the immersive CTS 3210 meeting environment, the specifications are:

Meeting rooms large enough to accommodate an 18 seat or 14 seat CTS 3210 built of drywall, suspended ceilings, and carpeting that have exposed, parallel hard surfaces, usually promote reverberation to levels greater than 500ms to nearly 900ms (1.2 seconds), creating echoes in the room. The echo cancellation in the CTS 3210 codec may compensate for this in the audio broadcast to remote participants; however, local sound quality will be degraded in this type of unremediated acoustic environment. Because of this, acoustic treatment is required for CTS 3210 rooms.

There are two options for acoustic treatment, installing asymmetrical acoustic panels or applying acoustic treatment to all wall surfaces in the room.

Asymmetrical Acoustic Wall Treatment

As shown in Figure 2-1, staggered acoustic panels are placed on the opposing drywall surfaces such that no bare wall surfaces face each other. This option provides more natural (versus less recording studio-like) sound characteristics in the room.

Complete Acoustic Wall Treatment

In complete acoustic wall treatment, all wall surfaces are covered by acoustic paneling, as shown in the following figure, though not necessarily from floor to ceiling. This creates a recording studio-like audio environment. This is optimal for clarity of audio transmission during a meeting and for recording meetings for playback; however, in-room participants may find the room uncomfortably muted or muffled as natural environments contain reverberation and echo. Which acoustic treatment you choose should be based how the room will be used and the participant expectations of the room experience.

There are four recommended lighting fixture placement options, all of which have the same goal, to provide even, indirect lighting throughout the room.

Which option you choose depends upon your choice of lighting fixtures.

Caution The following examples are for reference only. Please consult your lighting manufacturer's specifications for the adequate number and proper layout of fixtures to achieve the lighting levels mentioned above.

For example, lights that are brighter than the averages tested for this guide may require fewer placements. Likewise, dimmer than tested light sources may require a greater density of fixture placements.

Network Port Requirements

The CTS 3210 requires a single Gigabit Ethernet port (RJ-45 UTP) installed on the wall behind the system. This port connects the CTS primary codec (the main interface between the CTS endpoint and the network) to the network infrastructure.

RJ-45 UTP Gigabit Ethernet on the wall behind the system. Codec connectivity is required regardless of the participant access type.

Participants Option 1

1

Wireless

Customer must provide wireless access.

Participants Option 2

1

Wired with switch in room

An additional RJ-45 UTP port should be provided on the wall behind the system for the switch.

Please consult with your network administrator on which method is best for your telepresence deployment.

Note Any switches installed in the TelePresence room must meet the company's network policies. They must also meet the sound requirements of TelePresence. Switches should not generate more than 45dB of sound within the TelePresence room.

Power Requirements

The Cisco TelePresence System 3210 requires six dedicated 20Amp circuits @120V (US electrical code requires maximum 16A on a 20Amp circuit) or six dedicated 10amp circuits @ 240V. These circuits must be dedicated to the Cisco TelePresence System.

Of these six circuits:

•Four circuits should be located on the wall behind the system for the plasma screens, codecs, and front table of participant convenience ports.

•Two circuits should be provided via cable trench or under-carpet cabling solution to the back table participant convenience ports.

Note Peripherals such as document cameras or alternate displays will require additional circuits and receptacles. Placement will depend on the type and location of the peripheral.

To connect the CTS system components to the power circuits, the CTS 3210 and CTS 3200 both use Power Distribution Units (PDUs). Each PDU must support 20 amps@120V or 10 amps@240V, depending on your installation choice.

Auxiliary Display Considerations

The CTS 3200 comes with a data projector, designed to project onto the white screen below its three primary video displays. The CTS 3210 likewise has an LCD display below its three primary video displays.

For both the CTS 3200 and CTS 3210, content below the primary video displays is difficult for participants in the second row to see. The solution to this is that both systems include a 4-port HDMI splitter for additional external displays as part of the audio-video expansion unit.

This splitter enables you to add up to three additional data displays in the room so that second-row participants can easily view shared data. It also gives you flexibility to choose the number, size, and location of the extra displays in the room. We would recommend at least a 50 inch display when using one in the center above the CTS unit or two 46 inches displays when they are located on both sides of the unit, as shown in Figure 2-7.

Distance from the ceiling varies depending on ceiling height. Check the height of the room prior to additional display selection and installation. The CTS system itself is 7 feet (2.13m) high.

3

The lateral position for a side mounted position is 10'4" (313 cm) from center of CTS 3210.

Cabling Considerations for Second Row Seating

To connect the participant convenience ports in the CTS 3200 or CTS 3210 second row seating, a cable trench or an under-carpet cable conveyance solution is recommended. The position of the trench or cable conveyance is shown in Figure 2-8 and Figure 2-9.

You use this conveyance to provide access between the rear of the system and the microphone cables for the second row. You can also use this conveyance to add power and Ethernet connectivity for second row conference participants. To add power connectivity, you need to provide a floor-mounted electrical termination unit (for example, a junction box with two electrical outlets) on the right edge of the second row table. See Figure 7-13 for an example.

The trench or cable conveyance should be able to allow a clear separation between the power cable, microphone cable, and Ethernet cable bundles. One exit of the trench should come out behind the right plasma.

The microphones are connected through a microphone extension lead and the maximum distance between the microphones to the codec is 17.5 meters (57.4 feet). The extension microphone lead is 9 meters (29.5 feet). Any longer distance between the microphone and primary codec introduces noise and is not supported. The Ethernet cables which are connecting the participants in the second row are 10 meters (32.8 feet) long and the two Power Distribution Units which are used to provide power to the second row have 7 meter (23 feet) long cables.

If you are unable to route the cables under the floor, be sure that your alternative solution (such as an under-carpet cable conveyance) follows all local fire, building, accessibility, and safety codes. Alternately, power and data could be taken directly from the back wall in another trench as long as it follows all local fire, building and safety codes.

Note The trenching guidelines in these figures use the minimum distance of the system to the rear wall, which is four inches (10.2 cm). If you increase the distance between the system and the rear wall, increase the distance between the trench and the rear wall by the same amount.